<template>
  <view>
    <!-- 使用自定义的搜索组件 -->
    <view class="search-box">
      <my-search @click="gotoSearch"></my-search>
    </view>
    <view>
      <!-- 轮播图区域 -->
      <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
        <swiper-item v-for="(item,i) in swiperList" :key="i">
          <navigator class="swiper-item" :url="'/subpkg/goods_detail/goods_detail?goods_id=' +item.goods_id">
            <image :src="item.image_src"></image>
          </navigator>
        </swiper-item>
      </swiper>
      
      <!-- 分类导航栏 -->
      <view class="nav-list">
        <view class="nav-item" v-for="(item,i) in navList" :key="i" @click="navClickHandler(item)">
          <image :src="item.image_src" class="nav-img"></image>
        </view>
      </view>
      
      <!-- 楼层渲染 -->
      <view class="float-list">
        <view class="float-item" v-for="(item,i) in floatList" :key="i">
          <image :src="item.floor_title.image_src" class="float-img"></image>
          <view class="floor-img-box">
            <!-- 楼层左边大图片 -->
            <navigator class="left-img-box" :url="item.product_list[0].url">
              <image :src="item.product_list[0].image_src" :style="{width:item.product_list[0].image_width +'rpx'}" mode="widthFix"></image>
            </navigator>
            <!-- 4个小图片 -->
            <view class="right-img-box">
              <navigator class="right-img-item" v-for="(item2,i2) in item.product_list" :key="i2" v-if="i2 !== 0" :url="item2.url">
                <image :src="item2.image_src"  :style="{width:item2.image_width +'rpx'}" mode="widthFix"></image>
              </navigator>
            </view>
          </view>
        </view>
        
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        //轮播图的数据列表
        swiperList:[],
        navList:[],
        floatList:[]
      };
    },
    onLoad(){
      // 2. 在小程序页面刚加载的时候，调用获取轮播图数据的方法
          this.getSwiperList()
          this.getNavList()
          this.getFloatList()
    },
    methods:{
      async getSwiperList(){
        const {data: res}= await uni.$http.get('/api/public/v1/home/swiperdata')
        if(res.meta.status !== 200){
          return uni.$showMsg()
        }
        
        this.swiperList =res.message
        uni.$showMsg('请求成功')
      },
      
      async getNavList(){
       const{data: res} = await uni.$http.get('/api/public/v1/home/catitems')
       if(res.meta.status !== 200){
         return uni.$showMsg()
       }
       
       this.navList = res.message
       
      },
      
     async getFloatList(){
       const{data :res} =  await uni.$http.get('/api/public/v1/home/floordata')
       if(res.meta.status !== 200){
         return uni.$showMsg()
       }
       res.message.forEach(floor => {
           floor.product_list.forEach(prod => {
             prod.url = '/subpkg/goods_list/goods_list?' + prod.navigator_url.split('?')[1]
           })
         })
       this.floatList = res.message
      },
      navClickHandler(item){
        if(item.name == '分类'){
          uni.switchTab({
            url:'/pages/cate/cate'
          })
        }
      },
      gotoSearch() {
        uni.navigateTo({
          url: '/subpkg/search/search'
        })
      }
    }
  }
</script>

<style lang="scss">
swiper{
  height: 330rpx;
  .swiper-item,
  image{
    width: 100%;
    height: 100%;
  }
}
.nav-list{
  display: flex;
  justify-content: space-around;
  margin: 15px 0;
  
  .nav-img{
    height: 128rpx;
    width: 140rpx;
  }
}
.float-list{
  
  .float-img{
    display: flex;
    height: 60rpx;
    width: 100%;
  }
  .right-img-box{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
  }
  .floor-img-box{
    display: flex;
  }
}
.search-box {
  // 设置定位效果为“吸顶”
  position: sticky;
  // 吸顶的“位置”
  top: 0;
  // 提高层级，防止被轮播图覆盖
  z-index: 999;
}

</style>
